python 3.x ImportError: No module named 'cStringIO'

Question

How do I solve an ImportError: No module named 'cStringIO' under Python 3.x?

Answer 1

From Python 3.0 changelog:

The StringIO and cStringIO modules are gone. Instead, import the io module and use io.StringIO or io.BytesIO for text and data respectively.

From the Python 3 email documentation it can be seen that io.StringIO should be used instead:

from io import StringIO from email.generator import Generator  fp = StringIO() g = Generator(fp, mangle_from_=True, maxheaderlen=60) g.flatten(msg) text = fp.getvalue() 

Answer 2

I had the same issue because my file was called email.py. I renamed the file and the issue disappeared.